SeaMonkey

by Zulkarnain K.

43 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,664 reviews

13,387,362 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,807 reviews

910,521 users

The first and only download manager/accelerator built inside Firefox!

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,586 reviews

1,746,448 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Ghostery by Ghostery

Rated 4 out of 5 stars 1,517 reviews

930,030 users

Increase your browsing privacy, protection, and speed.

Stylish by userstyles.org

Rated 4 out of 5 stars 879 reviews

314,556 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 276 reviews

208,568 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Web Developer by chrispederick

Rated 5 out of 5 stars 276 reviews

277,886 users

The Web Developer extension adds various web developer tools to the browser.

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 81 reviews

133,691 users

Manage any SQLite database on your computer.

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 384 reviews

159,966 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 174 reviews

21,526 users

A simple note-taking extension.

Private Tab by Infocatcher

Rated 5 out of 5 stars 245 reviews

48,744 users

Adds private tabs.

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 25 reviews

31,307 users

This add-on shows you what JavaScript code runs on a web page, even if it is obfuscated and generated on the fly. Simply open JavaScript Deobfuscator from the Web Developer menu and watch the scripts being compiled/executed.

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 263 reviews

70,997 users

Adds the ability to create and edit entries in the password manager.

RefControl by James Abbatiello

Rated 4 out of 5 stars 171 reviews

59,682 users

Control what gets sent as the HTTP Referer on a per-site basis.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 172 reviews

53,088 users

An HTTP analyzer addon for Firefox
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